Air diffuser and regulator.



F.. A. A. BARRS.

AIR DIFFUSER AND REGULATOR.

APPLICATION FILED AuG.I6. |918.

1,299,659. A PaIenIedApr. 8,1919.

INVENTOR ATTORNEYS In sr'rns FRANK A. A. BARES, or VANCOUVER, BRITISHCOLUMBIA, CANADA.'

AIR DIFFUSER AND REGULATOR.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application led August 16, 1918. Serial No. 250,191.

To all whom t may concern j j Be it known that I, FRANK A. A. BARRS, a.citizen of the Dominion of Canada, residing at Vancouver, in theProvince of British Columbia, Canada, have invented certain new anduseful Improvements in Air Diffusers and Regulators, of which thefollowing is a specification.

This invention relates to a means for controllingthe admission of airfor ventilation into a room and for directing and diffusing the air asadmitted.

In any Ventilating system where heated or cooled air is delivered into aroom, unless some means is taken to upwardly direct and diffuse theinpassing air, objectionable draft is experienced inthe line of thedelivery, while there may be stagnation of air in other parts of theroom.

The invention, which is the subject of this application, is designed toavoid these objections by providing the air delivery inlet to the roomwith a means not'only for controllingr the amount of air admitted butfor directing and diffusing the inflow.

The invention is particularly described in the following specification,reference being made to the drawings by which it is accompanied, inwhich:

Figure 1 is a vertical section through the air register and diffuser onthe line 1-1 in Fig. 3.

Fig. 2 is a face view showing the connection of the operating means tothe air directing planes. Fig. 3 is a plan on the line 1, and

Fig. 4 is a plan of the rope operated nut by which the directing planesare set and 3 3 in Fig.

held at anyl desired angle and of the yoke is divided by partitions 5into a series of separate outlets 4, and these partitions are Carried asuilicient distance into the duct 2 below fthe delivery aperture toinsure reasonable uniformity of ow through the several divisions of theduct.

The partitions 5 of the delivery aperture are preferably disposedhorizontally and each subdivision has a closing and iniow directingplane 6 pivotally mounted at 7 in the front edge of each side of theframe 3 in line with the underside of the subdivision aperture 4 andclosable upward against stops 8 projecting from the inner side of theoutlet frame.

The pivots ofthe inflow directing planes are retained in position bycover strips 27 secured over them to the edge of the frame 3. Theseinflow directing planes may be set at any desired angle in relation tothe plane of the wallv 9- and may be closed against the stops 8 by alink rod 10' which is pi-votally connected to a spur lever 11 backwardlyand upwardly projecting from the pivot edge of each plane 6 adjacent itsmidlength. The lower end of this link lrod 10 is pivotally connected at29 to the end of a screw 12, on which screw is threaded as a nut a ropesheave 13. This nut sheave is rotatably mounted between bearings 14 in ayoke 15 which is provided with trunnion pins 16 on which the yoke iscarried in brackets 17 secured to and downwardly projecting from theunderside of the outlet frame 3.

This trunnion mounting of the nut carrying yoke 15 allows the nut sheave13 to adjust itself to the angular movement of the -screw 12. Thebrackets 17 also carry the pins 18 on which small rope guide sheaves 19are mounted, around which sheaves an endless operating rope 20 isconducted from the pendant vertical line of the rope to the horizontallydisposed groove of the nut sheave 13. By placing the guide sheaves 19back of the nut sheave 13 the rope 20 is more effectively retained onthe sheaves, but a guard 29*l may be carried around the front of 13 toprevent accidental displacement of the rope.

By this manner of mounting, the nut sheave 13 may be rotated in eitherdirection by the endless rope 20, and, being heid against endwisemovement, will, through the agency of the screw 12, raise or lower thelink rod 10 to close or set all the planes 6 to any desired angle andwill support them as set.

Secured to and projecting forward from the upper side of the outletframe 3 at a slight upward angle is a hood or canopy 21, which preventsthe upwardly directed current of air from being projected against theceiling. The air delivered into a room may thus be controlled in amountand directed Lateral diffusion of the air currents so delivered fromeach division of the air admission is effected by a series of diffusing'vanes 22 secured to and upwardly projecting from each plane 6. Thesevanes are flanged along the lower edge where they are secured to theplanes and the upward and the forward edge is substantially concentricwith the ypivotal mounting of the planes 6 that the vanes will freelypass within the division of the delivery aperture.

These lateral diffusing vanes 22 are piv-A otally connected atv 23'tothe back or pivotal edge of each plane 6 and are secured in any desiredposition of angular adjustment by a clamping bar 24, which passesthrough an elongated aperture 25 partially sheared in each vane and thepartially sheared portion downwardly turned to the side opposite theflange, on which flange and downwardly turned portion-the bar 24 may beclamped .to secure the vanes-by a small bolt 26 at each end of the barand lintermediate of the same.

These three bolts of the clamping bar may be slackened and the vanes setat any desired angle to either or both sides .and se- 4 cured. Thissetting and clamping of the lateralv diffusing vanes are. supposed to bedone by one who knows the ventilation vrequirements of the room.

By dividing the {iow of air delivered to a room and by controlling thedirection of the divided flow upward 'or downward and by v'laterallydiffusing it, the ventilation `of a plished, and -while I am aware thatprior to room may be much more efectively accom- .my invention theadmission of `air for the heating or ventilation of'a room has beencontrolled by a register having narrow pivotally mounted louvers orshutters, which may have had the effect of directin the'low to someextent, I am notaware o any system wherein-the inow has been divided,di-

. .rected and diffused as by the devicehereinbefore described.

Having now particularly described myim ve'ntlon, I hereby declare thatwhat I claim protected in by Letlaterally directing vthe low'of theadmitted air.

'2. ,An air register, comprising the combinationwifth a duct deliveringair to jaroom,

of means for dividing the delivery iniiow by a series of partitionsdisposed in the duct la short distance from the iniiow aperture at'which they are horizontally disposed, means for controlling the amountof thedivided inlowand for ,directing such inflow anguone side or theother.

larly upward or downward as desired, and means coperative with said'controlhng means for directing the inflow laterally to 3. An airregister, comprising `the combination with a duct delivering air to aroom, a series of horizontally disposed partitions dividing the outflowVaperture of said duct,

planes pivotally mounted along the forward bottom edge of eachhorizontalsubdivision,

means for simultaneously moving the free,v

edges of said planes to close the'apertures or to sustain the planes atany desired angle,

deflection.

4. An air register, comprislng the conibl-v v nation with a ductdelivering air to a room, a series of partitions vertically dividing theductbefore it turns to the delivery outlet, said partitions beingdisposed to divide the outlet horizontally, -planes pivotally mounted Valong the bottom forwardedge of each subclosed position and forsustaining themas set, said means comprising a link rod, pivV otallyconnected to a spur backwardly pro-y jecting from the Ipivot edge ofeach plane,` a-

screw pivotally connected to said link rod, a rotatable nut threaded onthe screw, means for rotating said nut, and means preventing endwisemovement 'of it, vanes pivotally 'io mounted and upwardly projectingfrom each yplane, and means for securing said vanes at l any desiredposition of angular adjustment on their pivots.

5. An air register, comprising the'combination with a duct deliveringair to a room, of a. seriesof partitionsgdividing the outflow l apertureof said duct, gaid partitions being carried for -a short distance intothe ductA from the outflow aperture, means ffor closing the subdivideddelivery apertures and for adjustably directing-the iniow into the room,and adjustablemeans carried by and coperative with said 'closing means-ffor dii'using each divided ifnlow.

e. Aa air register, epmprising the ambiination with a d uct deliveringair to a room, a series of horizontally disposed partitions dividing theoutfiow apertures of said duct,

planes pivotally mounted along the forward bottom edge of eachhorizontal subdivision, said Planes adapted to close the subdividedapertures or direct the iniiow angularly lup ward or downward, a linkrod pivotally con' nected to a spur backwardly projecting fram thepivoted edge of each plane, a screw piva rope sheave threaded as a nuton vthe screw, a yoke within whichA the nut sheave is H.otally connectedto one'end of said link rod,

.90, division, means for simultaneously setting ythe planes at anydesired angle from 'the trunnion-mounted to a fixed bracket, guidesheaves rotatably mounted in the same bracket in planes tangential tothe groove of the rope wheel and an endless rope passing over the guidesheaves and around the rope sheave whereby the sheave may be rotated toclose the planes or to adjust them at any desired angle, vanes projveating upward from each plane and -pivotally mounted thereon t0 belaterally angled to either side, and a securing bar passing through anaperture in each vane, and means for clamping the bar to the planes tosecure the vanes in any desired position of angular adjustment.

In testimony whereof I aHiX my signature. 15

FRANK A. A. BARRS.

